class="kw">package com.hypixel.hytale.server.core.modules.physics.util;

class="kw">import javax.annotation.Nonnull;

class="kw">public class PhysicsBodyStateUpdaterRK4 class="kw">extends PhysicsBodyStateUpdater {
   class="kw">private class="kw">final PhysicsBodyState state = new PhysicsBodyState();

   class="kw">public PhysicsBodyStateUpdaterRK4() {
   }

   @Override
   class="kw">public void update(@Nonnull PhysicsBodyState var1, @Nonnull PhysicsBodyState var2, double var3, double var5, boolean var7, @Nonnull ForceProvider[] var8) {
      double var9 = var5 * 0.5;
      this.computeAcceleration(var1, var7, var8, var3, var9);
      this.assignAcceleration(var2);
      this.updateVelocity(var1, this.state, var9);
      updatePositionBeforeVelocity(var1, this.state, var9);
      this.computeAcceleration(this.state, var7, var8, var3, var9);
      this.addAcceleration(var2, 2.0);
      this.updateVelocity(var1, this.state, var9);
      updatePositionAfterVelocity(var1, this.state, var9);
      this.computeAcceleration(this.state, var7, var8, var3, var9);
      this.addAcceleration(var2, 2.0);
      this.updateVelocity(var1, this.state, var5);
      updatePositionAfterVelocity(var1, this.state, var5);
      this.computeAcceleration(this.state, var7, var8, var3, var5);
      this.addAcceleration(var2);
      this.convertAccelerationToVelocity(var1, var2, var5 / 6.0);
      updatePositionAfterVelocity(var1, var2, var5);
   }
}